I am currently running a HT OMEGA Striker 7.1 (24bit/96khz -- C-Media CMI8770) into a Fiio E9 before getting to my DT880 600Ω. I would prefer to say away from tube amps (Because I will be using these a lot). I have seen a lot of hype about the E17 (portability is a plus since I am full time student), but have also read that it isn't the best for higher impedance headphones. Would I be better off with keeping my setup the way it is for now (and possibly saving for something better), or would I see a significant difference in upgrading (either a new sound card or external DAC) considering I have $200-250 to spend? Would it be worth getting some kind of receiver or external device to take advantage of the sound cards optical/coaxial outputs (I believe it is only using 44khz through regular line out)?
Any feedback is greatly appreciated.






